PUBLICATION OF ATRANSPARENCY NOTIFICATION - ACKERMANS & VAN HAAREN

About this update from Ackermans & Van Haaren Nv

PUBLICATION OF ATRANSPARENCY NOTIFICATION - ACKERMANS & VAN HAAREN Pursuant to article 14 of the law of 2 May 2007, Nextensa NV/SA announces that it has received a transparency notification dated 30 October 2025 from Ackermans & van Haaren NV/SA (having its registered offices at Begijnenvest 113, 2000 Antwerp, Belgium). Ackermans & van Haaren has notified that, following an acquisition of additional shares on 28 October 2025, its total number of voting rights in Nextensa increased to 80.31% of the voting rights . Based on this transparency notification, Nextensa understands that Ackermans & van Haaren holds 68.13% of the total number of shares (= financial participation) in Nextensa NV/SA on 28 October 2025. Content of the notification: REASON FOR THE NOTIFICATION: acquisition or disposal of voting securities or voting rights NOTIFICATION BY : the parent company or controlling person PERSON(S) SUBJECT TO THE NOTIFICATION REQUIREMENT TRANSACTION DATE : 28 October 2025 THRESHOLD THAT HAS BEEN EXCEEDED : 80% DENOMINATOR : 16 225 206 DETAILS OF THE NOTIFICATION FULL CHAIN OF CONTROL OF THE COMPANIES VIA WHICH THE PARTICIPATION IS EFFECTIVELY HELD: Chain of control above Leasinvest Services NV and Nextensa NV (i)      Leasinvest Services NV is directly controlled by Nextensa NV, a company under Belgian law.       (ii)      Nextensa NV is directly controlled by Ackermans & van Haaren NV, a company under Belgian law. Chain of control above Ackermans & van Haaren NV (i)      Ackermans & van Haaren NV is directly controlled by Scaldis Invest NV, a company under Belgian law.       (ii)      Scaldis Invest NV is directly controlled by Belfimas NV, a company under Belgian law.       (iii)      Belfimas NV is directly controlled by Celfloor S.A., a company under Luxembourg law.       (iv)      Celfloor S.A. is directly controlled by Apodia International Holding B.V., a company under Dutch law.       (v)      Apodia International Holding B.V. is directly controlled by Palamount S.A., a company under Luxembourg law.       (vi)      Palamount S.A. is directly controlled by Stichting Administratiekantoor ‘Het Torentje', a legal person under Dutch law.       (vii)      Stichting administratiekantoor “Het Torentje” is the ultimate controlling shareholder. In accordance with article 11, §1 of the law of 2 May 2007, Stichting Administratiekantoor ‘Het Torentje' acts in its own name and on behalf of the above-mentioned companies. Transparency notifications in accordance with the law of 2 May 2007 or the articles of association of Nextensa must be sent to [email protected] . The notifications can be consulted on the company's website . FOR MORE INFORMATION Michel Van Geyte | Chief Executive Officer Nextensa NV/SA | 0436.323.915 (RLE Brussels, Dutch-speaking division) Gare Maritime, Picardstraat 11, B505, 1000 Brussels +32 2 882 10 08 | [email protected] www.nextensa.eu ABOUT NEXTENSA Nextensa is a mixed-use real estate investor and developer. The company’s investment portfolio is divided between the Grand Duchy of Luxembourg (32%), Belgium (51%) and Austria (17%); its total value as at 30/06/2025 was approximately € 1.1 billion. As a developer, Nextensa is primarily active in shaping large urban developments. At Tour & Taxis (development of over 350,000 sqm) in Brussels, Nextensa is building a mixed real estate portfolio consisting of a revaluation of iconic buildings and new constructions. In Luxembourg (Cloche d’Or), it is working in partnership on a major urban extension of more than 400,000 sqm consisting of offices, retail and residential buildings. The company is listed on Euronext Brussels and has a market capitalisation of € 426 M (value 30/06/2025)   Attachment

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